Acoustics of Travelling Bubble Cavitation

Experiments on cavitation prove that the noise level is highly dependent on the type of cavitation. Usually it is expected that bubble cavitation is much less severe than cloud cavitation. To verify this expectation, noise measurements on a bubble stream over a hydrofoil were done at Marin (Wageningen ,The Netherlands). These experiments show that there is not much difference irrespective of the fact whether the bubbly flow is clustering or not.